Database Reference
In-Depth Information
not just your system. As we have stated, and will state again: So what if your system is
up and available? There are no gold stars for being first when the rest of the
organization is down or your server needs to be rebooted because it came up in the
wrong order. Guess what? Rebooting your server just extended the RTO.
Many products can aid in disaster recovery. However, what you need is a solution. A
solution, from our experience, is a combination of multiple products that when put
together provide a disaster recovery solution. Find a solution that takes into account the
entire data center, not just a single application. Key pieces of any solution are
orchestration and automation. Remember, this is a disaster, and the resources with the
necessary knowledge to restore systems may not be available, so orchestrate and
automate as much of the recovery as possible. For the orchestration and automation, we
recommend reviewing VMware's Site Recovery Manager (SRM). SRM allows for the
orchestration and automation of your disaster recovery plans while also providing the
ability to execute nondisruptive tests of your plans.
Note
More information on SRM can be found at
https://www.vmware.com/products/site-recovery-manager/ .
“Fragmented” is the one-word answer we get from the majority of our customers when
we ask them to define their disaster recovery plans. They tell us they have 37 different
procedures and methods for recovering applications in their environment. Customers
are looking for simplification of their disaster recovery plans. This is where we suggest
implementing a tiered solution. The tiered approach involves providing four or five
tiers, each offering different capabilities. Take these capabilities, place them in a menu
format, and present them to the application owners after the interview process. Table
9.1 has an example of what this solution might look like. The first tier (Tier 1) leverag es
synchronous replication at the storage layer, provides multiple point-in-time rollback
capability, and is tied to an orchestration and automation tool. This solution is tied to
RPOs and RTOs. Each tier is composed of multiple technologies to achieve the most
cost-effective solution possible. The tiering of solutions also simplifies and reduces the
fragmentation of recovering systems during an event.
 
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